I have found a feature in my SG-237 that does not appear to be documented in the manual or on the SGC web page. If the tuner is powered up or reset with the tune lock/hold condition set then it will disable the tune from memory feature. The only way to clear this condition is to cycle the power off and on with the tune lock/hold not enabled.

SGC has verified that it indeed is supposed to work this way. It gives you a means to disable the tune from memory feature without opening up the box and changing the jumper setting.

Copyright 2000-2017 eHam.net, LLC
eHam.net is a community web site for amateur (ham) radio operators around the world.
Contact the site with comments or questions.
WEBMASTER@EHAM.NETSite Privacy Statement